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Found 36 results

1991

Estimating Aquifer Parameters from Analysis of Forced Fluctuations in Well Level - an Example from the Nubian Formation near Aswan, Egypt .3. Diffusivity Estimates for Saturated and Unsaturated Zones
Evans, K.; Beavan, J.; Simpson, D.; Mousa, S.
Journal of Geophysical Research-Solid Earth and Planets
(1991)
Issue:
B7
Pages:
12161-12191
Volume:
96
A Local Magnitude Scale for Aswan Earthquakes, Egypt
Elkhashab, H. M. A.; Fathelbary, R. E.; Simpson, D. W.; Ibrahim, E. M.
Journal of Geodynamics
(1991)
Issue:
1-4
Pages:
111-123
Volume:
14
Estimating Aquifer Parameters from Analysis of Forced Fluctuations in Well Level - an Example from the Nubian Formation near Aswan, Egypt .1. Hydrogeological Background and Large-Scale Permeability Estimates
Evans, K.; Beavan, J.; Simpson, D.
Journal of Geophysical Research-Solid Earth and Planets
(1991)
Issue:
B7
Pages:
12127-12137
Volume:
96
Estimating Aquifer Parameters from Analysis of Forced Fluctuations in Well Level - an Example from the Nubian Formation near Aswan, Egypt .2. Poroelastic Properties
Beavan, J.; Evans, K.; Mousa, S.; Simpson, D.
Journal of Geophysical Research-Solid Earth and Planets
(1991)
Issue:
B7
Pages:
12139-12160
Volume:
96

1973

First Successful Prediction of an Earthquake in United-States
Aggarwal, Y. P.; Simpson, D. W.; Sbar, M. L.; Pomeroy, P. W.; Sykes, L. R.
Transactions-American Geophysical Union
(1973)
Issue:
11
Pages:
1134-1134
Volume:
54

1980

The Focal Mechanisms of the Gazli, Ussr, Earthquakes
Kristy, M. J.; Burdick, L. J.; Simpson, D. W.
Bulletin of the Seismological Society of America
(1980)
Issue:
5
Pages:
1737-1750
Volume:
70
Seismicity Changes Preceding 2 Recent Central Asian Earthquakes
Kristy, M. J.; Simpson, D. W.
Journal of Geophysical Research
(1980)
Issue:
Nb9
Pages:
4829-4837
Volume:
85
Earthquake Prediction
Simpson, D. W.
Nature
(1980)
Issue:
5772
Pages:
445-446
Volume:
286

1994

High-Frequency Spectra of Regional Phases from Earthquakes and Chemical Explosions
Kim, W. Y.; Simpson, D. W.; Richards, P. G.
Bulletin of the Seismological Society of America
(1994)
Issue:
5
Pages:
1365-1386
Volume:
84

1982

Induced Seismicity and Style of Deformation at Nurek Reservoir, Tadjik Ssr
Keith, C. M.; Simpson, D. W.; Soboleva, O. V.
Journal of Geophysical Research
(1982)
Issue:
Nb6
Pages:
4609-4624
Volume:
87

1985

Induced Seismicity around Aswan Lake
Simpson, D. W.; Kebeasy, R. M.; Maamoun, M.; Ibrahim, E. M.; Albert, R. N.
Tectonophysics
(1985)
Issue:
3-4
Pages:
281-281
Volume:
118
The 1976 and 1984 Gazli, Ussr, Earthquakes - Were They Induced
Simpson, D. W.; Leith, W.
Bulletin of the Seismological Society of America
(1985)
Issue:
5
Pages:
1465-1468
Volume:
75
Changes in Vp/Vs with Depth - Implications for Appropriate Velocity Models, Improved Earthquake Locations, and Material Properties of the Upper Crust
Nicholson, C.; Simpson, D. W.
Bulletin of the Seismological Society of America
(1985)
Issue:
4
Pages:
1105-1123
Volume:
75

1981

Induced Seismicity at Nurek Reservoir, Tadjikistan, Ussr
Simpson, D. W.; Negmatullaev, S. K.
Bulletin of the Seismological Society of America
(1981)
Issue:
5
Pages:
1561-1586
Volume:
71
Structure and Permeability - Geologic Controls on Induced Seismicity at Nurek Reservoir, Tadjikistan, Ussr
Leith, W.; Simpson, D. W.; Alvarez, W.
Geology
(1981)
Issue:
10
Pages:
440-444
Volume:
9
Tectonics and Seismicity of the Toktogul Reservoir Region, Kirgizia, Ussr
Simpson, D. W.; Hamburger, M. W.; Pavlov, V. D.; Nersesov, I. L.
Journal of Geophysical Research
(1981)
Issue:
Nb1
Pages:
345-358
Volume:
86

1975

Investigations of Seismic Regime during Filling of Nurek Reservoir, Tadzhikistan-Ussr
Simpson, D. W.; Soboleva, O. V.; Koczynski, T. A.; Abramov, O.
Transactions-American Geophysical Union
(1975)
Issue:
12
Pages:
1025-1025
Volume:
56
Seismicity Changes during 1st Stage of Filling of Nurek Reservoir, Tadzhikistan-Ussr
Soboleva, O. V.; Mamadaliev, U. A.; Simpson, D. W.
Transactions-American Geophysical Union
(1975)
Issue:
12
Pages:
1025-1025
Volume:
56
Spatial and Temporal Variations in Ts-Tp and in P-Wave Residuals at Blue Mountain Lake, New-York - Application to Earthquake Prediction
Aggarwal, Y. P.; Sykes, L. R.; Simpson, D. W.; Richards, P. G.
Journal of Geophysical Research
(1975)
Issue:
5
Pages:
718-732
Volume:
80

1977

P-Signal Complexity and Upper Mantle Structure
Simpson, D. W.; Cleary, J. R.
Geophysical Journal of the Royal Astronomical Society
(1977)
Issue:
3
Pages:
747-756
Volume:
49
Water Level Variations and Reservoir-Induced Seismicity at Nurek, Ussr
Simpson, D. W.; Soboleva, O. V.
Transactions-American Geophysical Union
(1977)
Issue:
12
Pages:
1196-1196
Volume:
58

1986

Seismic Domains within the Gissar-Kokshal Seismic Zone, Soviet Central-Asia
Leith, W.; Simpson, D. W.
Journal of Geophysical Research-Solid Earth and Planets
(1986)
Issue:
B1
Pages:
689-699
Volume:
91
Triggered Earthquakes
Simpson, D. W.
Annual Review of Earth and Planetary Sciences
(1986)
Pages:
21-42
Volume:
14
Earthquakes Related to Active Salt Doming near Kulyab, Tajikistan, Ussr
Leith, W.; Simpson, D. W.
Geophysical Research Letters
(1986)
Issue:
10
Pages:
1019-1022
Volume:
13

1976

Seismicity Changes Associated with Reservoir Loading
Simpson, D. W.
Engineering Geology
(1976)
Issue:
2-4
Pages:
123-150
Volume:
10
Earthquakes Triggered by Surface Quarrying - Wappingers Falls, New-York Sequence of June, 1974
Pomeroy, P. W.; Simpson, D. W.; Sbar, M. L.
Bulletin of the Seismological Society of America
(1976)
Issue:
3
Pages:
685-700
Volume:
66

1992

A Survey of Blasting Activity in the United-States
Richards, P. G.; Anderson, D. A.; Simpson, D. W.
Bulletin of the Seismological Society of America
(1992)
Issue:
3
Pages:
1416-1433
Volume:
82

1989

Teleseismic Body Wave Analysis of the 1988 Armenian Earthquake
Pacheco, J. F.; Estabrook, C. H.; Simpson, D. W.; Nabelek, J. L.
Geophysical Research Letters
(1989)
Issue:
12
Pages:
1425-1428
Volume:
16

1974

Temporal and Spatial-Analysis of Premonitory Velocity Anomalies for August 3, 1973 Blue Mt Lake (Bml) Earthquake
Aggarwal, Y. P.; Simpson, D. W.; Sykes, L. R.
Transactions-American Geophysical Union
(1974)
Issue:
4
Pages:
355-355
Volume:
55
Upper Crustal Structure and Active Dilatancy Monitoring at Blue Mountain Lake (Bml) New-York
Simpson, D. W.; Aggarwal, Y. P.; Sykes, L. R.
Transactions-American Geophysical Union
(1974)
Issue:
4
Pages:
354-354
Volume:
55

1988

2 Types of Reservoir-Induced Seismicity
Simpson, D. W.; Leith, W. S.; Scholz, C. H.
Bulletin of the Seismological Society of America
(1988)
Issue:
6
Pages:
2025-2040
Volume:
78

1987

Aswan Telemetered Seismograph Network
Simpson, D. W.; Kebeasy, R. M.; Nicholson, C.; Maamoun, M.; Albert, R. N. H.; Ibrahim, E. M.; Megahed, A.; Gharib, A.; Hussain, A.
Journal of Geodynamics
(1987)
Issue:
3-4
Pages:
195-203
Volume:
7
Earthquake Studies at Aswan Reservoir
Kebeasy, R. M.; Maamoun, M.; Ibrahim, E.; Megahed, A.; Simpson, D. W.; Leith, W. S.
Journal of Geodynamics
(1987)
Issue:
3-4
Pages:
173-193
Volume:
7

2007

Vitaly Ivanovich Khalturin (1927-2007) - In memoriam
Hamburger, M.; Kopnichev, Y.; Levshin, A.; Martynov, V.; Mikhailova, N.; Monar, P.; Richards, P. G.; Roecker, S.; Simpson, D.; Tucker, B. E.; Wesson, R.
Seismological Research Letters
(2007)
Issue:
6
Pages:
577-578
Volume:
78

1984

Crustal Studies, Velocity Inversions, and Fault Tectonics - Results from a Microearthquake Survey in the New Madrid Seismic Zone
Nicholson, C.; Simpson, D. W.; Singh, S.; Zollweg, J. E.
Journal of Geophysical Research
(1984)
Issue:
Nb6
Pages:
4545-4558
Volume:
89

1993

Discrimination of Earthquakes and Explosions in the Eastern United-States Using Regional High-Frequency Data
Kim, W. Y.; Simpson, D. W.; Richards, P. G.
Geophysical Research Letters
(1993)
Issue:
14
Pages:
1507-1510
Volume:
20